Advent of Sysadmin
Fix a broken Linux server each day for the first twelve days of December
Advent of Sysadmin is a twelve-day advent calendar of Linux and DevOps troubleshooting scenarios from SadServers. Each day unlocks a broken server that you reach through a terminal in the browser, and you diagnose and fix it, for example a failing service, a full disk or a misconfigured app, until the automatic check passes.
Free · Login needed · Browser · New puzzle daily
About Advent of Sysadmin
It trains real on-call skills: reading logs, using the shell and fixing services under light time pressure. Difficulty varies by day, so it suits beginners through experienced sysadmins.
It runs in the browser on SadServers. You need a SadServers account. After the event, the scenarios stay online with added clues and solutions.
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